Incredible (adjective)

1. Too improbable to be believed.
2. Extraordinary.

Origin:

Late 16th century: from in- "not" + credible, or from latin incredibilis, from in- "not" + credibilis "worthy of belief".

Examples:

1. The story sounds incredible.
2. He made an incredible performance.
3. The achievement is incredible.
4. The prices are simply incredible.
5. The technology is incredible.